Traveling by Car for Thanksgiving?

Here's a few tips for Car Safety & Snacks:

Car Safety - Prepping for Your Trip
Cellular Security: To stay in touch with work and home, as well as handle unexpected events on the road, a cell phone is essential. Before leaving on your trip, ask your service provider about roaming fees and countrywide coverage.

Overall Checkup: Whether you do it yourself or go to a garage, pre-trip auto maintenance is key to comfortable cruising. Check the wiper blades, all fluid levels (oil, water, etc.), belt and hose connections, tire pressure, turn signals, horn and headlights. If your car is still not instilling confidence, consider an all-out professional inspection.

Trunk 101: Exactly how prepared you want to be as far as your in-car tool kit is up to you, but a few items go without saying (OK, we'll say them anyway). The following should always be within easy reach when you open your trunk door: a tire iron, bottled water, fire extinguisher, first-aid kit and reflectors/flares.

Spare Care: Just because you have a spare tire doesn't mean it's in working order. Give it a good look before hitting the road to ensure it's properly pumped and the treads are intact. If you've got the space, swap out doughnut tires for a full-size spare.

Wondering what Munchies to Take?
Trail Mix: Make your own by combining dried fruit with pretzels, nuts, chocolate chips and granola for an energy-packed snack.

Bottled water and Juice boxes: Individual frozen bottles of water and juice boxes work double duty, quenching thirst while keeping cooler contents on ice at the same time.

Spreads: Peanut butter and Nutella are good stick-to-the-knife spreads that are easy to employ when you're in motion (jelly, on the other hand, is bound to make a mess). Favorite foods for getting your spread on? Try sliced apples, celery sticks, crackers and cookies.

Hard cheeses: Opt for a block of cheddar or gouda over gooey brie and camembert. Hard cheeses keep longer once the cooler starts to warm up, and leave less mess.

Hard-boiled eggs: Protein-packed and easy to eat, they're the ideal road-trip snack.

Cut veggies: Baby carrots, celery sticks, radishes, sliced green pepper and cherry tomatoes (neatly packed in Tupperware) are easy to pass around the car to share.
Ref: http://www.travelchannel.com/interests/road-trips/articles/road-trip-tips